Wall grid



FIG. 1 is a front perspective view of a wall grid showing our design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a left side elevational view thereof.

The rear of the wall grid is unornamented and forms no part of theclaimed design.

The ornamental design for a wall grid, as shown and described.